DocumentManagement project

[asaadhoussam]

Hello, Thanks to anyone who offers help I downloaded the "DocumentManagement project" and installed it on my computer, I modified the database used to be SQLServer and downloaded all the necessary blocks to work in the new environment. rebuild without any error until end give me this Message: System.ArgumentException HResult=0x80070057 Message=An item with the same key has already been added. Key: Transient The following figure is a screenshot: https://ibb.co/KzS0nLq unfortunately the build did not work, it gives the message and then stops Is there a solution to this problem? thanks for help me